StackOverflow2013

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POHow to expand and collapse rows at particular level in UITableView?
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copied!<p>Rows of <code>Level 1</code> should expand and collapse. Suppose if <code>Row 0</code> is open - that means its status is <code>1</code> - and next row's status is <code>0</code>, if I click on next row whose status is <code>0</code>, then the row whose status is <code>1</code> should get closed. </p> <p>How can I do that? </p> <p>Here is my code:</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; dictBtnStatus = [[NSMutableDictionary alloc] init]; arraylist = [[NSMutableArray alloc] init]; array5 = [[NSMutableArray alloc] init]; array1 = [[NSMutableArray alloc] init]; objects = @[@"Medical Services In Chicago", @"Medical Services On Campus", @"ABC", @"California"]; // objects = @[@"Medical Services In Chicago", @"Medical Services On Campus"]; arrObjectValueChicago = @[@"Ronald McDonald® Children's Hospital of Loyola", @"Burn Centers", @"Gottlieb Hospitals"]; arrObjectValueCampus = @[@"Cardinal Bernardin Cancer Center1", @"Center for Heart & Vascular Medicine2", @"ABC"]; for (int i = 0; i < [arrObjectValueCampus count]; i++) { dictListCampus1 = [[NSDictionary alloc] initWithObjectsAndKeys:@"2", @"level",[arrObjectValueCampus objectAtIndex:i], @"name", nil]; [array5 addObject:dictListCampus1]; } NSDictionary *dictListCampus = [[NSDictionary alloc] initWithObjectsAndKeys:@"Wellness Centers", @"name", @"1", @"level", array5, @"Objects", nil]; NSMutableArray *array6 = [[NSMutableArray alloc] initWithObjects:dictListCampus, nil]; array3 = [[NSMutableArray alloc] init ]; for (int i = 0; i < [arrObjectValueChicago count]; i++){ dictList3 = [[NSDictionary alloc]initWithObjectsAndKeys:@"2", @"level",[arrObjectValueChicago objectAtIndex:i], @"name", nil]; [array3 addObject:dictList3]; } NSDictionary *dictList2 = [[NSDictionary alloc] initWithObjectsAndKeys:@"Hospitals", @"name", @"1", @"level", array3, @"Objects", nil]; NSMutableArray *array2 = [[NSMutableArray alloc] initWithObjects:dictList2, nil]; for (int i = 0; i < [objects count]; i++) { if (i == 0) { dictionary = [[NSDictionary alloc] initWithObjectsAndKeys:[objects objectAtIndex:0], @"name", @"0", @"level", array2, @"Objects", nil]; [array1 addObject:dictionary]; } else if (i == 1) { dictionary = [[NSDictionary alloc] initWithObjectsAndKeys:[objects objectAtIndex:1], @"name", @"0", @"level", array6, @"Objects", nil]; [array1 addObject:dictionary]; } else if (i == 2) { dictionary = [[NSDictionary alloc] initWithObjectsAndKeys:[objects objectAtIndex:2], @"name", @"0", @"level", array6, @"Objects", nil]; [array1 addObject:dictionary]; } else { dictionary = [[NSDictionary alloc] initWithObjectsAndKeys:[objects objectAtIndex:3], @"name", @"0", @"level", array2, @"Objects", nil]; [array1 addObject:dictionary]; } } dictList = [[NSDictionary alloc] initWithObjectsAndKeys:array1, @"Objects", nil]; arrayOriginal = [dictList valueForKey:@"Objects"]; [arraylist addObjectsFromArray:arrayOriginal]; } #pragma mark - TableView - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [arraylist count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { // static NSString *CellIdentifier = @"CustomCellIdentifier"; NSUInteger IndentLevel = [[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]; UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:@"Cell"]; if (IndentLevel == 0) { CustomCellHeader *cell = (CustomCellHeader *)[tableView dequeueReusableCellWithIdentifier:@"CellIdentifier"]; if (cell == nil) { [[NSBundle mainBundle]loadNibNamed:@"CustomCellHeader" owner:self options:nil]; cell = self.headercell; self.headercell = nil; } cell.lblHeader.text = [[arraylist objectAtIndex:indexPath.row] valueForKey:@"name"]; [cell setIndentationLevel:[[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]]; NSLog(@"indexFor level 0 ::%@ %d",cell.lblHeader.text,indexPath.row); return cell; } else if (IndentLevel == 1) { CustomCellSubHeader *cell = (CustomCellSubHeader *)[tableView dequeueReusableCellWithIdentifier:@"CellIdentifier"]; if (!cell) { [[NSBundle mainBundle]loadNibNamed:@"CustomCellSubHeader" owner:self options:nil]; cell = self.subheadercell; self.subheadercell = nil; NSLog(@"dicbtn %@", dictBtnStatus); NSString *strName = [[arraylist objectAtIndex:indexPath.row]valueForKey:@"name"]; NSString *str = [dictBtnStatus objectForKey:strName]; NSLog(@"indexFor level 1 ::%@ %d", strName, indexPath.row); if ([str isEqualToString:@"1"]) { [cell.btnarrow setImage:[UIImage imageNamed:@"dwn1_arow.png"] forState:UIControlStateNormal]; [cell.imgSubHeader setImage:[UIImage imageNamed:@"tab_active.png"]]; } cell.lblSubHeader.text = strName; cell.imgShadow.hidden = YES; [cell setIndentationLevel:[[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]]; } return cell; } else if (IndentLevel == 2) { CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:@"CellIdentifier"]; if (cell == nil) { [[NSBundle mainBundle]loadNibNamed:@"CustomCell" owner:self options:nil]; cell = self.cells; self.cells = nil; } cell.txtAddress.text = [[arraylist objectAtIndex:indexPath.row] valueForKey:@"name"]; [cell.btnCall addTarget:self action:@selector(btnCall:) forControlEvents:UIControlEventTouchUpInside]; [cell setIndentationLevel:[[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]]; return cell; } return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tblist deselectRowAtIndexPath:indexPath animated:YES]; NSUInteger IndentLevel = [[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]; NSString *strName = [[arraylist objectAtIndex:indexPath.row] valueForKey:@"name"]; CustomCellSubHeader *cell = ((CustomCellSubHeader*)[tblist cellForRowAtIndexPath:indexPath]); if (IndentLevel == 1) { [dictBtnStatus setValue:@"0" forKey:strName]; [cell.btnarrow setImage:[UIImage imageNamed:@"gry_arrow.png"] forState:UIControlStateNormal]; [cell.imgSubHeader setImage:[UIImage imageNamed:@"tab_default.png"]]; } NSDictionary *d = [arraylist objectAtIndex:indexPath.row]; if ([d valueForKey:@"Objects"]) { NSArray *ar = [d valueForKey:@"Objects"]; BOOL isAlreadyInserted = NO; for (NSDictionary *dInner in ar) { NSInteger index = [arraylist indexOfObjectIdenticalTo:dInner]; isAlreadyInserted = (index > 0 && index != NSIntegerMax); if (IndentLevel == 1) { [dictBtnStatus setValue:@"0" forKey:strName]; [cell.btnarrow setImage:[UIImage imageNamed:@"gry_arrow.png"] forState:UIControlStateNormal]; [cell.imgSubHeader setImage:[UIImage imageNamed:@"tab_default.png"]]; } else if (IndentLevel == 0) { NSString *strStatus = [dictBtnStatus objectForKey:strName]; if ([strStatus isEqualToString:@"1"]) { // NSDictionary *dict = [arraylist objectAtIndex:previousRow]; // if ([dict valueForKey:@"Objects"]) { NSArray * array = [[arraylist objectAtIndex:previousRow]valueForKey:@"Objects"]; [self miniMizeThisRows:array]; } } if (isAlreadyInserted) break; } if (isAlreadyInserted) { if ([arraylist count] - 1 && IndentLevel == 1) { cell.imgShadow.hidden = NO; } if (IndentLevel == 1) { [dictBtnStatus setValue:@"0" forKey:strName]; [cell.btnarrow setImage:[UIImage imageNamed:@"gry_arrow.png"] forState:UIControlStateNormal]; [cell.imgSubHeader setImage:[UIImage imageNamed:@"tab_default.png"]]; } else if (IndentLevel == 0) { [dictBtnStatus setValue:@"0" forKey:strName]; } [self miniMizeThisRows:ar]; } else { NSUInteger count=indexPath.row + 1; NSMutableArray *arCells = [NSMutableArray array]; for (NSDictionary *dInner in ar) { [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]]; previousRow = [indexPath row]; if (IndentLevel == 1) { [dictBtnStatus setValue:@"1" forKey:strName]; [cell.btnarrow setImage:[UIImage imageNamed:@"dwn1_arow.png"] forState:UIControlStateNormal]; [cell.imgSubHeader setImage:[UIImage imageNamed:@"tab_active.png"]]; } else if (IndentLevel == 0) { [dictBtnStatus setValue:@"1" forKey:strName]; } [arraylist insertObject:dInner atIndex:count++]; } [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationNone]; } } } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger indentLevel = [[[arraylist objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]; if (indentLevel == 0) { return 40; } else if (indentLevel == 1) { return 25; } else if (indentLevel == 2) { CustomCell *cell = ((CustomCell *)[tableView dequeueReusableCellWithIdentifier:@"CellIdentifier"]); CGSize maximumSize = CGSizeMake(300, 9999); UIFont *myFont = [UIFont fontWithName:@"Arial" size:11.5]; CGSize myStringSize = [cell.txtAddress.text sizeWithFont:myFont constrainedToSize:maximumSize lineBreakMode:NSLineBreakByWordWrapping]; [cell.txtAddress setFrame:CGRectMake(cell.txtAddress.frame.origin.x, cell.txtAddress.frame.origin.y, cell.txtAddress.frame.size.width, myStringSize.height)]; if (myStringSize.height > 80) { myStringSize.height = 50; [cell.txtAddress setFrame:CGRectMake(cell.txtAddress.frame.origin.x, cell.txtAddress.frame.origin.y, cell.txtAddress.frame.size.width, myStringSize.height)]; cell.txtAddress.scrollEnabled = YES; } else { cell.txtAddress.scrollEnabled = YES; myStringSize.height = 40; } return myStringSize.height+ 50; } else return 25; } #pragma mark - TableAnimation - (void)miniMizeThisRows:(NSArray *)ar { for(NSDictionary *dInner in ar) { NSUInteger indexToRemove = [arraylist indexOfObjectIdenticalTo:dInner]; NSArray *arInner = [dInner valueForKey:@"Objects"]; if (arInner && [arInner count] > 0) { [self miniMizeThisRows:arInner]; } if ([arraylist indexOfObjectIdenticalTo:dInner]!= NSNotFound) { [arraylist removeObjectIdenticalTo:dInner]; [tblist deleteRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:indexToRemove inSection:0]] withRowAnimation:UITableViewRowAnimationNone]; } } } </code></pre>

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